Deep Blue Spa Granular Chlorine Shock – 5kg

(40 customer reviews)

£54.99 £35.74

  • Pack size: 3Kg
  • 70% Chlorine Strength: This Granular Shock offers a high 70% available chlorine level for effective pool treatment.
  • Fights Green Water: Powerful algae fighting action helps clear up green, algae affected pools.
  • Simple Skimmer Dosing: Pour the granules through the skimmer basket for quick, easy application.
  • Post Storm Defence: A shock dose after thunderstorms helps stop algae taking hold in your pool.
  • Balanced pH Support: Helps keep pool water within the ideal 7.2 to 7.6 pH band for clearer water.
  • Steady Chlorine Residual: Keeps chlorine within the 1-3 mg/l range, discouraging algae and bacteria growth.
  • Quick to Dissolve: Dissolve the granules in water first, then add to the pool for fast, even distribution.
  • Clears Temporary Cloudiness: Leave the filtration system running after treatment until any cloudiness clears.
  • Wait Before Swimming: Allow chlorine to fall below 5ppm before bathing resumes, for safety.
  • Handle with Care: Wear the right protective gear and store the product somewhere cool and dry for safe use.

Description

This listing covers the 5kg size.

With Deep Blue Pro Granular Shock, crystal clear pool water is only one treatment away. These calcium hypochlorite granules carry a strong 70% available chlorine level, quickly resolving common pool water issues. Leave algae infestations behind and bring back sparkling, welcoming water using Granular Shock Chlorine.

Think of the period right after a thunderstorm, when nitrogen carried into your pool can turn the water an unwelcome shade of green. This is where Deep Blue Pro Granular Shock proves its worth. A quick dose, using either the Granular Shock Granules or the Shock ‘n’ Floc Granules, can save your pool from algae blooms triggered by storms.

Here’s how to apply the product for the best outcome. Keeping pH in the ideal range and holding free chlorine residuals at the recommended level both matter for achieving spotless pool water. Pre dissolve the granules, pour the solution into your pool, and allow it to work, keeping the filtration pump running so any short lived cloudiness disappears.

As for dosing rates, the table set out here shows how much product to use for various water volumes, depending on the chlorine increase you need. With accurate figures on hand, you can dose your pool with confidence and get reliable results.

These powerful granules demand careful handling. Follow the general precautions closely, from wearing protective equipment while dosing to keeping the product stored in a cool, dry place. This Granular Shock, built on potent Calcium Hypochlorite 70% CL Active, is not something to treat casually.

Understanding the risks matters with any strong product like this. Fire hazards and harm from swallowing are real concerns, so proper handling and storage are essential. Store the granules securely, out of children’s reach, and always follow the safety information provided.

In short, Deep Blue Pro Granular Shock does far more than treat your pool, it takes care of your pool maintenance troubles. Enjoy clean, clear water powered by these granules, trust their effectiveness, follow the application steps closely, and come back to a pool that’s always inviting for a swim. Deep Blue Pro Granular Shock could become your pool’s best kept secret for consistently pristine water.

Manufacturers description:

Deep Blue Pro Granular Shock – A traditional shock treatment product, these calcium hypochlorite granules have an available chlorine level of on average 70% making them a good chlorine donor for pool water problem solving.
Granular Shock Chlorine is very effective at restoring sparkling water from algae infestation.
Granular Shock Chlorine can be added through the skimmer.

Top Tip:As soon as possible after a thunderstorm shock dose your pool with a 5mg/l dose of Deep Blue Pro Granular Shock Granules or Shock ‘n’ Floc Granules.
The reason for this is that lightening creates nitrogen in the atmosphere and the rain washes this nitrogen into your pool. Nitrogen is plant food and algae thrive on it, so pool water can quickly turn green after a thunderstorm, a shock dose of chlorine can help prevent this.

Application Instructions:1. Maintain pH levels within the ideal range of 7.2 – 7.6. If the level is not in this range, adjust accordingly.
2. Maintain free chlorine residuals routinely in the 1 – 3 mg/l (ppm) range. Shock or oxidising procedures are recommended either weekly or fortnightly with a maximum of 10mg/l (10ppm) for a full shock treatment.
3. Pre-dissolve this product in a clean plastic container at a maximum rate of 100g of product per 2.2 gallons ( 10 litres) of water. Stir well to ensure product is fully dissolved. Add the resulting solution to the pool whilst the pump is turned ON preferably near the water inlets to aid distribution.
4. Repeat dose/application if necessary to achieve the desired level.
5. After using this product, pool water may become temporarily cloudy, so keep the filtration pump running until it clears.
6. After shock treatment procedures allow the chlorine to drop below 5ppm before bathing recommences and in any event wait for at least 30 minutes before bathing recommences.

70% Shock Chlorine Granules Dosing Rates
Water VolumesTo Increase Pool Chlorine Level by
LitresGallons1mg/L (1ppm)5mg/L (5ppm)10mg/L (10ppm)
4,5451,0007g35g70g
11,3602,50017g88g175g
22,7005,00035g175g350g
45,45010,00070g350g700g
68,17515,000105g525g1050g

General Precautions:
Dosing:Wear eye and face protection and ensure granules are not blown back into your face.
Never mix with any other chemicals including cleaning products and chlorine products, as a dangerous reaction will occur.
Do not pour this product into a pool skimmer basket containing chlorine tablets or any other product.
When pre-dissolving product always add product to water not the other way round.
Handling & Storage:Handle products in a well-ventilated area, preferably outdoors.
Wash hands after use.
Ensure chemicals do not become damp in storage – store in a cool dry place.

This Granular Shock contains Calcium Hypochlorite 70% CL Active – EC Label 231-908-7 UN3487

Risk:– Contact with combustible material may cause fire.
– Harmful if swallowed.
– Contact with acids liberates toxic gas.
– Causes burns.
– Very toxic to aquatic organisms, may cause long term adverse effects in the aquatic environment.
Safety:
– Use Biocides safely. Always read the label and product information before use.
– Keep locked up and out of reach of children.
– In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
– Wear suitable protective clothing,gloves and eye/face protection.
– In case of accident or if you feel unwell seek medical advice immediately and show this container or label.
– Avoid release to the environment.
– Refer to special instructions/safety data sheet.

Additional information

Weight5 kg
EAN

5060220128293

Brand

Deep Blue Pro

Manufacturers Code

DBPRSPA10

GPSR Responsible Operator

Deep Blue Pool Supplies

GPSR Address Line 1

Box 8899 Hermitage

GPSR City

Corsham

GPSR Post Code

SN13 8DT

GPSR Country

UK

GPSR Email

[email protected]

GPSR Manufacturer Name

Deep Blue Pool Supplies

GPSR Warn Safety Info 01

Harmful if swallowed.

GPSR Warn Safety Info 02

Causes serious eye irritation.

GPSR Warn Safety Info 03

Very toxic to aquatic life with long lasting effects.

GPSR Warn Safety Info 04

May cause respiratory irritation.

Size

5060220113657

40 reviews for Deep Blue Spa Granular Chlorine Shock – 5kg

  1. Paige Mitchell –

    Pool shocker

  2. Mr Sanjay Ali –

    Great buy, 500g pack with dependable sanitising, works fast. Great value.

  3. Timothy Siddiqui-Mahmood –

    It does what it says it does. works well pleased ref 29

  4. Dr Gemma Q. Rahman –

    Easy to use

  5. Sam Park –

    Works well with Bromine

  6. Mr Neil Y. Price –

    Arrived quickly, happy customer works well pleased overall. ref 4

  7. Billy Chamberlain –

    A good buy

  8. Mrs Paul Thompson –

    Top quality, pro grade performance 500g pack. Spot on.

  9. Dr Ben A. Walsh –

    Excellent chlorine with reliable results worked first time, would buy again.

  10. Asha X. Dhillon –

    Brilliant chlorine with well finished works as described, would buy again.

  11. Ali Abdeeq –

    Always use this now :

  12. Darren Hawkins –

    Works brilliantly, dependable sanitising with pro grade performance, works fast. Would buy again.

  13. Ms Molly Crawford –

    Really impressed, dependable sanitising with 500g pack, reliable treatment. Does the job.

  14. R. Z. MacDonald –

    Works brilliantly, dependable sanitising 500g pack. Highly recommend.

  15. Aisha King –

    Chlorine Granules

  16. Dr Tariq Reddy –

    Great buy, pro grade performance, quick results. Highly recommend.

  17. Nicholas Ginsberg –

    Good value

  18. Veronica connell –

    Transformed my pool

  19. Dr Ibrahim Hughes –

    Top quality, dependable sanitising 500g pack reliable treatment. Spot on.

  20. Fiona Roberts –

    As expected works well pleased overall. Pleased overall. ref 21

  21. M. Banerjee –

    So good chlorine with reliable results simple to apply, would recommend.

  22. Ms Bethany A. Wood-Desai –

    Did the trick works well pleased overall. Happy with it.

  23. Martin R. Akhtar –

    Good for first fill of water in hot tub

  24. Neel Sharma –

    Smelly, yet effective works well pleased overall. ref 91

  25. Sana Ross –

    Good bags

  26. Colin Johnstone –

    Works exactly as it should

  27. Dr Bethany Lee –

    Got a quick reply from support; lasted longer!! than expected…

  28. G. T. Thompson –

    Impressed chlorine with great value performed consistently, pleased overall.

  29. Miss Florence F. Davies –

    Love it, pro grade performance reliable treatment. Highly recommend. Ref 774.

  30. Charlie Nair –

    Reliable product works well pleased overall. Pleased overall.

  31. Sana Jackson –

    Great does what it says, good performance would recommend.

  32. Robert Armin –

    Great product

  33. Ms E. F. Richards –

    Brilliant chlorine with solid quality gave great results, would buy again.

  34. Amit R. MacLeod –

    Great buy, pro grade performance 500g pack effective on tough jobs. Spot on.

  35. Adeel Rahman –

    As expected works well pleased overall. Would buy again. ref 52

  36. Miss Ryan Lee –

    Great

  37. Kabir R. Iyer –

    Worked like magic works well pleased overall. Pleased overall. ref 20

  38. Ms Ivy K. Bennett –

    Did the trick

  39. Niamh U. Holmes –

    Great buy, dependable sanitising. Great value. Looks great.

  40. Indians –

    Does what it says on the container

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